Sailing: the new fashion trend?

Big names like Dolce & Gabbana, Uniqlo and Mark & Spencer are no longer hesitating to get into Islamic fashion: loose-fitting outfits, long skirts, scarves in multiple materials and shades... These clothes, which are intended to be trendy, are now available on the shelves of major European capitals. How do we interpret the development of this so-called "modest" fashion?